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physics question on magnetic force on a line current

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\f2. Magnetic Force on a [me Current You will use the current flowing through a wire immersed in a magnetic eld to determine the direction of the force and to verify the relationship of the magnitude of the current to the magnitude of the force. Procedure: 1. Draw a sketch of the setup. clearly labeling the poles of the magnet and the directions of the current. 2. Use a compass to determine whether the pole of the magnet. positioned next to the pivoting wire, represents a N or a S pole. 3. If not already done. set up the wire balance and adjust the magnet such that the tray on the wire balance is just across from the magnet. Connect the power supply. rheostat. ammeter and deadman switch in series with the wire balance. Be sure the rheostat is set for full resistance. 4. Turn on the power supply and press the deadman switch. The wire balance will move either up or down. Set the connections such that the wire balance moves upward. Note carefully the direction that conventional (positive) current is flowing for this case. 5. Position the laser such that the beam reects off the mirror attached to wire balance and onto a spot that can be easin marked. 5. Add 10 mg to the tray of the wire balance. Depress the deadman switch and adiust the current until the wire balance returns to equilibrium. as indicated by the laser spot. Record the current from the ammeter. 7. Repeat using the 20 or 30 mg weight. 8. Record your values at the chalkboard. Report: - Indicate in a diagram the direction of the magnetic field created by the magnets. the direction of the current through the wire balance. and the resulting force. Verify that your results are consistent with the right hand rule for the equation F = I | x B. - Using the data from all groups. compare the currents required for equilibrium with the weights placed on the tray for the two cases. You may wish to combine the values of each group in some way or look at each data set independently in your analysis. Based upon your analysis, is the data consistent with the equation F = I | x B? Explain why or why not